4

Pb      0.099846192911268      0.297104130414328      0.208111761339681
Pb      1.249108332064739      1.545043621973233     -0.071560934144575
Pb      1.298466753941782      0.267869454378980      1.370653908298140
Pb     -0.264547008472605      1.351629141683741      1.382295112827655